#include <face_dection.h>
face_dection::face_dection(/* args */)
{
    return ;
}
face_dection::~face_dection()
{
    return ;
}    
std::vector<face_box> process(const unsigned char* data[4],
        int width,
        int height,
        AVPixelFormat format)
{
    std::vector<face_box> result;
    return result;
}